Brian
@slabscientist
Follow on CollX
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798
Items
Welcome to the lab. Slab Scientist is a collector focused, data-driven sports card operation. Every card I list is researched, accurately described,
Welcome to the lab. Slab Scientist is a collector focused, data-driven sports card operation. Every card I list is researched, accurately described, and shipped with care- because I treat the hobby like the market it is, not a lottery ticket.
I grade what the data says to grade, and I sell what the comps support. All offers considered!
Rookie Seller
Joined since Sep 2025
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Followers
40
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Following
13
What I'm Collecting
Baseball
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Total cards sold:
37
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Average ship time:
1.3 days
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Last active:
4 days ago
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Seller rating
(14)
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Buyer rating
(1)
Tracked USPS standard envelope. $0.75-$1.31 | USPS Ground Advantage if 3.0oz+, $20.00+ or Graded cards. $5.90–$12